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VIPSealChem – FKM Chemical Couplings

Manufactured from FKM synthetic rubber, the new Patent Pending VIPSealChem is the latest addition to the VIPSeal® range

  • Product Range
    Standard Couplings / Drain Couplings / Adaptor Couplings
  • Product Type
    VSC / VDC / VAC
  • Material
    FKM
  • Size Range
    40-385mm+

The Chemical Resistant Flexible Sealing Solution

Manufactured from FKM synthetic rubber, the new Patent Pending VIPSealChem is the latest addition to the VIPSeal® range for use in low and non-pressurised applications where a high chemical resistance is required and other synthetic rubber materials such as EPDM, SBR and NBR are unsuitable.

VIPSealChem chemical couplings are manufactured to meet the demanding requirements of EN681-1 WB/WD and EN295-4 and along with providing a flexible and watertight connection on above and below ground drainage systems that require high resistance to a wide range of chemicals, VIPSealChem also operates in a wide range of temperatures.

Industry Applications

Due to its high resistance to a wide range of chemicals and temperatures, VIPSealChem is suitable for the following applications:

  • Chemical and Process Industries
  • Pharmaceutical, Medical and Research Laboratories
  • Food Processing Plants
  • Breweries
  • Dairies
  • Hospitals
  • Badly Contaminated Ground
  • Areas Susceptible to Fuel Spillages

Reduced Installation Times

As VIPSealChem’s chemical resistant properties lie in the FKM synthetic rubber that is used to manufacture the seal, there is no need for the use of a fluoropolymer (FEP) liner or expanded PTFE seals (which are commonly used on other chemical resistant sealing solutions). Because of this, they are as simple to install as any other seal within the VIPSeal® range, allowing dramatic time savings to be made on both installation and repairs along with providing a more consistent sealing performance.

Increased Range of Applications

By not using a  fluoropolymer (FEP) liner or expanded PTFE seals, VIPSealChem is able to be manufactured as an adaptor coupling. This application allows pipes with significantly different outside diameters to be joined, ensuring VIPSealChem can be used without the needs to make further alterations to existing pipes or prefabricated structures.

VSC-CHEM-FKM

FKM Standard Couplings (VSC)

Ref No.Size RangeWidth
VSC115FKM100-115mm120mm
VDC125FKM110-125mm120mm
VSC137FKM120-137mm120mm
VSC165FKM140-165mm120mm
VSC180FKM160-180mm120mm
VSC200FKM175-200mm150mm
VSC215FKM190-215mm150mm
VSC250FKM225-250mm150mm
VSC265FKM240-265mm150mm
VSC275FKM250-275mm150mm
VSC290FKM265-290mm150mm
VSC310FKM285-310mm190mm
VSC320FKM295-320mm190mm
VSC335FKM305-335mm190mm
VSC360FKM340-360mm190mm
VSC385FKM355-385mm190mm
VDC-CHEM-FKM

FKM Drain Couplings (VDC)

Ref No.Size RangeWidth
VDC40FKM32-40mm68mm
VDC50FKM40-50mm68mm
VDC65FKM50-65mm90mm
VDC75FKM60-75mm108mm
VDC85FKM70-85mm100mm
VDC95FKM80-95mm100mm
VDC115FKM100-115mm100mm
VDC165FKM140-165mm120mm
VDC215FKM190-215mm150mm
VAC-CHEM-FKM

FKM Adaptor Couplings (VAC)

Ref No.Size RangeWidth
VAC1225FKM110-122/48-56mm100mm
VAC1221FKM110-122/80-95mm100mm
VAC5144FKM110-125/100-115mm100mm
VAC4000FKM121-136/110-121mm100mm
VAC1362FKM121-136/100-115mm100mm
VAC1602FKM144-160/110-122mm120mm
VAC1603FKM144-160/121-136mm120mm
VAC1922FKM170-192/110-122mm120mm
VAC1923FKM170-192/121-136mm120mm
VAC1924FKM170-192/144-160mm120mm
VAC2000FKM180-200/130-145mm150mm

FKM High and Low Temperature Service

FKM can be rated for long term service at 200⁰C without marked degradation of either the molecular structure or mechanical properties of the polymer. Under some service conditions and for reduced periods of exposure, temperature of above 300⁰C can be tolerated. FKM is also serviceable in dynamic applications down to -15⁰C and in static applications will perform well down to -30⁰C.

For applications where an extreme temperature resistance is required but aggressive chemicals are not present, VIPSeal® flexible couplings can be manufactured in peroxide cured EPDM (EPDMp). Speak to our technical department for further details.

FKM Chemical and Fluid Resistance

FKM has excellent resistance to hot oils, synthetic lubricants, gasolines, JP fuels, commercial dry cleaning fluids, aqueous acids/bases and many other organic solvents and chemicals (see below for performance rating summary):

Excellent Resistance (Little or no effect)Automotive Fuels and Oils
Hydrocarbon Solvent
Aircraft Fuels and Oils
Hydraulic Fluids
Certain Chlorinated Solvents
Good to Excellent Resistance (moderate effect)Highly Aromatic Solvents
Polar Solvents
Water and Salt Solutions
Aqueous Acids
Dilute Alkaline Solutions
Oxidative Environments
Not RecommendedStrong Caustic, Ammonia
Certain Polar Solvents (Methyl Ethyl Ketone)

For a comprehensive guide of the chemical compatibility of the VIPSealChem range, download a copy of our Chemical Compatibility Guide (below):

Installation Guide

From cutting the pipe to achieving a complete watertight seal, our step by step walkthrough shows you exactly how to install our VIPSealChem couplings.

VIPSealChem VSC Installation Example

Chemical Compatibility Guide

Complete List of compatibility of the complete VIPSeal range including SBR/EPDM/NBR and FKM materials

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